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4、肢鬼乔细蛰冯迄头排投曾涕泌需技数增淑恿悬恿踩庸丙瞎乔戊枯坞排投张讯结叠泌此娄除伙缮汉刹汉肢鬼助异梆坑折捎抖眷淆剑迪须未魂萤诌餐骸姨寞编甄适杠言镰身抖延垃饯蒂墙未计营鹏畅峙提骸编妹帅篙野骆吭折捎抖眷札墙Wire EDM Technology Abstract: With the continuous improvement of machinery manufacturing and the need for precision processing, advanced machinery manufacturing technology also matter of course. In th
5、is paper, EDM wire cutting technology and its application and development trends. Key words: Mechanical manufacturing technology, EDM wire cutting 0.Preface Manufacturing technology is not only a measure of a country an important indicator of the level of technological development is the focus of in
6、ternational technological competition. Machinery manufacturing technology is the study of product design, production, processing, manufacturing, selling and use, maintenance services and even the whole process of recycling the engineering disciplines, is to enhance quality, efficiency, competitivene
7、ss as the goal, including material flow, information flow and energy flow complete system works. With the development of society, the requirements for products, great changes have taken place, asked to diverse species, update to speed, quality to high-end, the use to be convenient, the price must be
8、 reasonable and appearance to appearance, higher degree of automation, service better, more and more to meet the requirements necessary to adopt advanced machine manufacturing technology. The characteristics of advanced manufacturing technology: (1) it is the 21st century technology. (2) it is the t
9、echnology for indust of micro-hole slot, narrow, arbitrary curves, with allowance of small, high precision, short production cycle, manufacturing highlight the advantages of low cost, has been widely apprial applications. (3) it is to harness the production process systems engineering. (4) it is a t
10、echnology for global competition. (5) it is the unity of the three elements of market competition. However, EDM wire cutting technology is one of advanced manufacturing technology, mechanical production and wide application, it is mainly used for processing a variety of complex shapes and precision
11、small parts, for example, Die punch, die, punch and die, fixed plate, stripper plate and so on, forming cutter, model, EDM machining the metal electrode, a varietylied in production, the current account abroad WEDM EDM over 60% of the total. The following highlights WEDM machining technology and app
12、lication of principles and development trends. 1. Principles of WEDM WEDM (Wire cut Electrical Discharge Machining, referred to as the WEDM), sometimes also known as cutting. The basic physical principle is the presence of free positive ions and electrons to accumulate, and soon to be ionized to for
13、m a conductive channel. In this stage, a current between two plates, lead to numerous collisions between particles occur, forming a plasma, and soon increased to 8000 to 12,000 degrees Celsius, melting moments in the two conductors, some of the material at the same time, the electrode and dielectric
14、 fluid vaporized, forming a bubble, the rules and it increased until the pressure is very high. And current interruption, the temperature suddenly drop, causing the bubble implosion, the momentum generated to melt the material thrown into the crater, and then the material is corrosive fluid in the d
15、ielectric re-condensed into a small ball, and was discharged dielectric fluid. NC-controlled then the monitoring and control, servo bodies, so that the phenomenon of uniform discharge to achieve the processing of materials to be processed, making it meet the requirements of size and shape precision
16、products. On this basis, our domestic development of the Fast Wire System (HS). Europe and Japan, developed the walking system (LS). The main difference is 1, the electrode wire of tungsten and molybdenum alloy wire used, the foreign use of brass. 2, by specification of the working fluid, demonized water used abroad. 3, take the wire of the speed of 11 meters / second or so, abroad for 3 to 5 m / min. 4, we repeat the electrode wire is to use until the broken wire to the fo
